Climate ZonesCaliforniaTuolumne

Tuolumne, California HVAC Climate Zone

Tuolumne is located in IECC Climate Zone 4B (Mixed - Dry). Get accurate Manual J load calculations with official design temperatures for Tuolumne.

Climate Zone
4B
Winter Design
3°F
Summer Design
92°F
ZIP Codes
12

Tuolumne HVAC Contractors: Get Your Free Manual J Report

Climate Zone 4B requires precise load calculations. Upload your Tuolumne blueprint and get a professional Manual J report in 60 seconds— first report is FREE. Pre-loaded with Tuolumne's exact design temperatures (3°F winter / 92°F summer).

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Verify Your Tuolumne ZIP Code

Enter your ZIP code to confirm it's in Tuolumne and get climate zone details.

Tuolumne covers 12 ZIP codes: 95305, 95310, 95321, 95327, 95329, 95335, 95346, 95364, 95370, 95372 and 2 more

Tuolumne Design Temperatures

Official ASHRAE design temperatures for Tuolumne, used for accurate Manual J load calculations.

Winter 99% Design Temp
3°F
Summer 1% Design Temp
92°F
Summer Wet Bulb
62°F

IECC Requirements for Zone 4B

Minimum insulation and window requirements for Tuolumne per IECC 2021.

Wall Insulation:R-20
Roof/Ceiling:R-49
Floor Insulation:R-19
Window U-Factor:0.32
Window SHGC:0.4

Energy Code: 2022 Title 24

Recommended HVAC Equipment for Tuolumne

Heating Systems

Gas furnace (92%+ AFUE)
Typical AFUE
92-96%

Cooling Systems

AC (14-16 SEER)
Typical SEER
14-16 SEER

Related Climate Zone Pages

Learn More About
Climate Zone 4B
View All Zones in
California
HVAC Permits for
Tuolumne, California

Get Free Manual J Calculations for Tuolumne

Upload your Tuolumne blueprint and get a professional Manual J load calculation using official Zone 4B design temperatures. First report is FREE.

Tuolumne design temps
Zone 4B compliant
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